Prescribed 50mg Naltrexone for physical withdrawal (and mental?) of alcohol; what is your experience?

Back to day one.

My number is completely off just as a disclaimer; I slipped about 2 weeks ago and have steadily increased my alcohol intake since then.

When talking with my psychiatrist this morning, I mentioned that I get confused as to whether my cravings are mental or physical; I'd say physical, as I feel I need to somehow relax my body from the senses of distress and restlessness I experience.

Otherwise, it becomes mental as I think, meditate, reach out, etc. and nothing seems to work in that regard. Psychiatrist agreed that Naltrexone could be a life-saver for me short and long term for continuous sobriety.

If you have taken Naltrexone, what is/was your experience? I'm confident it will help but always wanting to hear others' experience with it.